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| Aproksimacija Boussinesq× | Fickovi zakoni× | |
|---|---|---|
| Oblast | Termodinamika | Termodinamika |
| Porodica | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 1903 | 1855 |
| Tvorac≠ | Joseph Boussinesq | Adolf Fick |
| Tip≠ | Approximation technique | Diffusion law |
| Temeljni izvor≠ | Boussinesq, J. (1903). Théorie Analytique de la Chaleur. Gauthier-Villars. link ↗ | Fick, A. (1855). On liquid diffusion. Philosophical Magazine, 10(63), 30-39. DOI ↗ |
| Drugi nazivi | buoyancy approximation, Boussinesq model | diffusion equation, Fickian diffusion |
| Srodne | 3 | 3 |
| Sažetak≠ | The Boussinesq Approximation simplifies the governing equations for natural convection by treating density as constant except in the buoyancy term. This approximation is valid when temperature variations produce small density changes and allows researchers to solve coupled heat-fluid flow problems without solving the full, nonlinear compressibility equations. The Boussinesq Approximation is fundamental to analyzing buoyancy-driven flows in buildings, enclosures, and geophysical applications. | Fick's Laws describe how species diffuse through media due to concentration gradients. The First Law (steady-state) relates diffusion flux to concentration gradient, while the Second Law (transient) describes how concentration changes over time. These laws are fundamental to mass transfer analysis, applying to gases, liquids, and solids. Fick's Laws are analogous to Fourier's Law of heat conduction, replacing temperature with concentration. |
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